203223131434 has 64 divisors (see below), whose sum is σ = 326582784000. Its totient is φ = 94572878400.

The previous prime is 203223131431. The next prime is 203223131443. The reversal of 203223131434 is 434131322302.

It is a happy number.

It is a super-2 number, since 2×203223131434² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203223131431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268458184 + ... + 268458940.

It is an arithmetic number, because the mean of its divisors is an integer number (5102856000).

Almost surely, 2^203223131434 is an apocalyptic number.

203223131434 is a deficient number, since it is larger than the sum of its proper divisors (123359652566).

203223131434 is a wasteful number, since it uses less digits than its factorization.

203223131434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 203223131434 its reverse (434131322302), we get a palindrome (637354453736).

The spelling of 203223131434 in words is "two hundred three billion, two hundred twenty-three million, one hundred thirty-one thousand, four hundred thirty-four".